/* ao1dev — theme from logo: black background, golden yellow accent */

:root {
  /* From logo */
  --bg-primary: #000000;
  --accent: #fcd800;
  --accent-soft: rgba(252, 216, 0, 0.15);

  /* Primary palette */
  --bg-secondary: #0c0c0c;
  --bg-tertiary: #141414;
  --bg-card: #111111;
  --border: #1f1f1f;

  /* Secondary / UI */
  --text-primary: #f5f5f5;
  --text-secondary: #9a9a9a;
  --text-muted: #5c5c5c;
  --accent-hover: #ffe033;
  --accent-muted: #c4a800;

  /* Typography */
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  /* Spacing & rhythm */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  --container: min(90vw, 960px);
  --header-height: 4rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo img {
  height: 2rem;
  width: auto;
}

.nav {
  display: flex;
  gap: var(--space-xl);
}

.nav a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--accent);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2rem;
  height: 2rem;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
}

.menu-toggle span {
  display: block;
  height: 2px;
  background-color: currentColor;
  border-radius: 1px;
}

@media (max-width: 640px) {
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: var(--space-lg);
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    gap: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .menu-toggle {
    display: flex;
  }
}

/* Hero */
.hero {
  padding: var(--space-4xl) 0;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-inner {
  text-align: center;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 var(--space-lg);
  letter-spacing: -0.02em;
}

.hero-title .accent {
  color: var(--accent);
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 32ch;
  margin: 0 auto var(--space-xl);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  color: var(--bg-primary);
}

.btn-secondary {
  background-color: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-secondary:hover {
  background-color: var(--accent-soft);
  border-color: var(--accent-hover);
  color: var(--accent-hover);
}

/* Sections */
.section {
  padding: var(--space-3xl) 0;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin: 0 0 var(--space-xl);
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-transform: lowercase;
}

/* Services */
.services {
  background-color: var(--bg-secondary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xl);
}

.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: var(--space-xl);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  border-color: var(--accent-muted);
  box-shadow: 0 0 0 1px var(--accent-soft);
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: var(--space-md);
  color: var(--accent);
  border-radius: 8px;
  background: var(--accent-soft);
}

.card-icon svg {
  flex-shrink: 0;
}

.card:hover .card-icon {
  color: var(--accent-hover);
  background: rgba(252, 216, 0, 0.22);
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--text-primary);
}

.card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Portfolio */
.portfolio {
  background-color: var(--bg-primary);
}

.portfolio-intro {
  color: var(--text-secondary);
  margin: -var(--space-md) 0 var(--space-xl);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.portfolio-card {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: var(--space-xl);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  color: inherit;
}

.portfolio-card:hover {
  border-color: var(--accent-muted);
  box-shadow: 0 0 0 1px var(--accent-soft);
  color: var(--text-primary);
}

.portfolio-card-tag {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.portfolio-card-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--text-primary);
}

.portfolio-card p {
  flex: 1;
  margin: 0 0 var(--space-md);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.portfolio-card-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
}

.portfolio-card:hover .portfolio-card-link {
  color: var(--accent-hover);
}

/* About */
.about {
  background-color: var(--bg-primary);
}

.about-lead {
  font-size: 1.2rem;
  color: var(--text-primary);
  max-width: 50ch;
  margin: 0 0 var(--space-md);
}

.about-body {
  color: var(--text-secondary);
  max-width: 50ch;
  margin: 0;
}

/* Contact */
.contact {
  background-color: var(--bg-secondary);
}

.contact-inner {
  text-align: center;
}

.contact-lead {
  color: var(--text-secondary);
  margin: 0 0 var(--space-md);
}

.contact-email {
  font-size: 1.25rem;
  font-weight: 600;
  font-family: var(--font-mono);
}

.contact-email:hover {
  text-decoration: underline;
}

/* Footer */
.site-footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border);
  background-color: var(--bg-primary);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.footer-logo {
  height: 1.5rem;
  width: auto;
  opacity: 0.9;
}

.footer-copy {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Case study (long-form) */
.case-study .article-wrap {
  max-width: 42rem;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}

.case-study .case-study-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.case-study .case-study-back:hover {
  color: var(--accent);
}

.case-study .case-study-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 var(--space-sm);
  letter-spacing: -0.02em;
  text-transform: lowercase;
}

.case-study .case-study-meta {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: var(--space-2xl);
}

.case-study .case-study-body h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: var(--space-2xl) 0 var(--space-md);
  color: var(--text-primary);
  text-transform: lowercase;
}

.case-study .case-study-body h2:first-child {
  margin-top: 0;
}

.case-study .case-study-body p {
  margin: 0 0 var(--space-lg);
  color: var(--text-secondary);
}

.case-study .case-study-body ul {
  margin: 0 0 var(--space-lg);
  padding-left: 1.25rem;
  color: var(--text-secondary);
}

.case-study .case-study-body li + li {
  margin-top: var(--space-xs);
}